# 这是注释

"""
print("Hello World!")
print("Hello")
"""

str = ("12345"
       "67890")
num = 10 + 20
str2 = ('11'
        '11')
str3 = '''
1
2
3
4
5
'''
print(str3)
# type 查看变量的类型
print(type(str3))  # <class 'str'>
str3 = 100
print(type(str3))  # <class 'int'>
# 动态类型语言
# num1 = int(input("请输入第一个数字"));  # str > int
# num2 = int(input("请输入第二个数字"));
# print(num1 + num2)
print(111, end=" ")
print(222)
# ctl+alt+L
str4 = '1234'
print(str4, end="")
print('-----------------')
print(11//2)
print(2**3)
# + - % / *

#  && and
#  || or
#  !  not
# if( 3>1 and 5>2):